Home / 376,811.13-519,969.20-215,629.23

Finding the Fourth Proportional to 376,811.13, 519,969.20 and 215,629.23

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Solution

The fourth proportional to 376,811.13, 519,969.20 and 215,629.23 is: 297,551.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,811.13 : 519,969.20 = 215,629.23 : x
  2. Step 2: Convert to fraction form
    376,811.13/519,969.20 = 215,629.23/x
  3. Step 3: Cross multiply
    376,811.13x = 519,969.20 × 215,629.23
  4. Step 4: Simplify right side
    376,811.13x = 112,120,557,141.57
  5. Step 5: Solve for x
    x = 112,120,557,141.57/376,811.13
  6. Step 6: Final answer
    x = 297,551.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.